Railway train



heilt@ HEINRICH BOLTSHAUSER, OF ZURICH, SVJITZERLAMD.

RALTAY TRIN.

Application filed November 8, 1921. ySerial No. 513,697.

To all whom t flurry concern Be it known that l, HEINRICH Boiysi-IAUsnR, a citizen oi the Republicot CSwitzerland, residing at Zurich, Switzerland, have invented certain new and useful lmprovements in Railway Trains, oi which the tollowing is a specification, reference being had therein to the accompanying drawing.

r)The present invention relates to improv)- ments in railway trains and has 'for its object to provide a heating installation tor railway trains driven by a steam locomotive working with condensation and provided with a re-cooling` device for the cooling water o1 the condenser. According` to the invention, heaters fitted to the railway cars constitute parts of the re-cooling device in which heaters the waste heat oi a portion of the cooling water tor the condenser is utilized `tor heating purposes.

In steam locomotives working with condensation the cooling' water recpiired in the condenser is preferably recooled by an air current induced upon the running ot the locomotive in a recooling device coupled to the latter. TWhen designing such re-cooling devices certain dimensions cannot be exceded on account oi the prescribed railway clearance gauge and in order to comply with certain conditions arising from the practical working of the device.. In consequence thereof the re-cooling devices used do not work with the desired efficiency, so that the vacuum in the condenser is not particularly high. ln arranging the heaters ot the cars to form parts of the re-cooling device it is possible to re-cool the cooling water for the condenser to a lower temperature than is the case if the re-cooling of the cooling water takes place only in a re-cooling device proper, whereby a bettei vacuum in the condenser can be obtained.

Furthermore a secondary advantage is atn tained in that the waste heat contained in the cooling water which otherwise would be lost is utilized in a known manner.. The present invention proves advantageous when the train travels up long slopes or inclines and the locomotive can, as a rule, not supply any cooling oil-the cooling water is not elticient on account of the air current notbeing so strong, owing to the reduced speed of the train, as would be necessary in view of the increased output of the locomotive.

Several constructonal steam tor heating purposes and the reexamples of the invention are diagraimnatically illustrated in the accompanying drawing, in which:

Fig. 1 iS a side view, partly in section, ot a first constructional example,

Fig. 2 shows part ot an installation in which the portion ot the coolino water that has been cooled in the heaters or the railway train is then led into the recooling device proper and Fig. 3 'llustrates part oit an installationin which the portion ot the cooling water used for heating purposes is raised to a higher temperature previous to its admission into the heaters of the cars.

Referring to the drawing, l. denotes the steam turbine which actuates the driving axles 3 of the locomotive through the interposition ot' a transmission gear 2. The eX- haust steam from the steam turbine 1 enters the surface-condenser 4 to whichcooling water is supplied through a conduit'. The cooling water healed in the surface condenser i'is caused, by the pump QS, to flow through the conduit 'Y to a cooling vehicle 8 in which itis, in a known manner, re-cooled by the action ot un airecurrent induced upon the ruiming of the locomotive and then eollected in a tanlr 9, from where it is returned to the condenser t by means oil the pump 10 and the conduit From the conduit T a conduit 1i the length of the train, a valve 12 being inserted in the conduit 11. rllhe valve 12 can be operated 'from the cab ot the locomotive by means of the arrangement 16. To

the conduit 11 there are connected the heaters 13 by which the cars 17, coupled to the locomotive, are heated by a warm water heating system. The heaters 13 are in turn connected to a conduit 14k extending along the train, the conduit let vbeing connected to At the point ot connection 15 is "from the conduit 5. between the conduits 11 and a valve provided which can also be actuated the drivers cab means of tlment 18.

The operation of the above described installation is as `i'ollows :4 It the cars 17 are to be heated the valves l2 and l5 are adjusted to provide tor an open connection between the conduits 7 and 11 and the conduits 5 and 14 respectively. A portion ot the cooling water discharged from the condenser 4l; by means of the rpump 6 flows into theseveral heaters 13 of the cars, in which it is recooled by the occuring emission oit heat whereupon it is czuisedlio flow heck to the condenser i together with the Water drawn from the tank 9 by the action of the pump l0. In this wey e poition of the coinparzitively warm Writer leaving the condenser i flows is heatingY niediuin through the heaters or radiators 18 of the Warm-Water iieating installation of the trein which iforins part of the re-cooling` device proper, in order to he reoooled in seid heaters.

if the cars fire not to he heated the connections between the conduits 7 end 1l und end "mi respectively are interrupted.

it' it is deeined necessary the portion of the ceuipiiretivelv iverni cooling): Writer leaving; the condenser 4s sind utilized ior heating pif posee eii'ter having heen ie-cooled in the heaters i3 ot the verni-Weiter heating installation o't the railivziytrzi' i may he. led 'frein the conduit ifi througn tee conduit i9 into the ie--coolingr ist rice which arrange nientl is iilustizited in Fig. 2.

is kshown in Fig'. 3 the portion of the coinpziintirelj,i ivziiin cooling Water proceeding 'from the condenser 4i iney, it necessariay pass en additional heating` apparatus 9,0 previous to its :dow through the heaters l?- oii the cnrs, 'for 'the purpose of raising; its temperature.

The additional heatingl apparatus is sup-- plied with live steuin from the locomotive through e conduit 2i. The ruiter oi? conn densetion formed in the heating; apparatus 2() 'flows 'through :i conduit 22 iii'o the water teni: 23 of' the coolingvehicie i cleiin:

l. n e railivnvtrnin, the combination, oi'f e steam-locomotive provided with e con'- dens ig e. re-cooling` device. for the cooling; Water used Jfor condensing purposes, cars(q heaters provided in said cars and adapted to i/ieeeezi forni parts of seid re-cooling,` device, conduits or diverting zi portion of the cooling Waiter to seid heaters lor utiliU/Jinp)` the waste 1neet contained iii said portion of the cooling Water to heut the cars und to improve thus the ie-cooling effect and the vacuuni in the condenser, and valves to control the portion oi' the cooling; Water diverted to seid heaters.

l'n e railway trein., the combination, of zi. lsteenidocoinotive provided With o, condenser, a ire-coolingdevice for coolingr the Water used for condensing piiposes, cars, heaters ,provided in seid cnrs and adapted to forni parts of seid re-cooling device, ineens for divertingo, portion oi the cooling' Writer es heating; inediuiii to seid heaters to heet the cars end 'to improve the re-cooling` eilfect and the vacuum in the condenser oy cooling' seid portion oi the cooling Writer in the heaters,k :i heating- :irrfiiigeiiient connected to seid ineens ior supplli/ying?r said portion of the cooling Water to the cnrs, and. ineens to suppl;7 live eteein troni the locomotive to said heating arrangement for raising` the temperature of the heating` niediuin previous to its being supplied to seid heaters.

lfn testimony 'whereof l ethz; my signature.

fiElNRICH BOLTSHAUSER. 

